Developer Tools

JS

JSON to CSV Converter

Convert JSON arrays into clean CSV files that open straight in Excel or Google Sheets, with headers taken from your object keys.

Developer Tools JS

JSON Formatter Online

Format messy JSON into readable, indented output and validate it at the same time, with clear errors that point to the exact problem.

Developer Tools BA

Base64 Encode Decode

Encode text to Base64 or decode Base64 back to readable text, with proper handling of Unicode characters, all in your browser.

Developer Tools UR

URL Encoder Decoder

Percent-encode URLs and query values safely, or decode encoded links back into readable form, with both component and full-URL modes.

Developer Tools HT

HTML Minifier

Minify HTML by removing comments and needless whitespace to shrink page weight, while protecting preformatted blocks and scripts.

Developer Tools CS

CSS Minifier

Compress CSS by stripping comments and whitespace and tightening values, producing a smaller stylesheet that styles pages identically.

Developer Tools JA

JavaScript Minifier

Minify JavaScript with a proper parser that renames local variables and removes dead weight, powered by Terser running in your browser.

Developer Tools TI

Timestamp Converter

Convert Unix timestamps to readable dates and back, in seconds or milliseconds, with UTC and your local time shown side by side.

Developer Tools SL

Slug Generator Online

Turn any title into a clean URL slug — lowercase, accents removed, your choice of separator — with a live full-URL preview.

Developer Tools UU

UUID Generator Online

Generate random version 4 UUIDs one at a time or in bulk up to 100, with uppercase and hyphen options, copy-all and download.

Developer Tools BI

Binary to Text Converter

Convert binary code to readable text and text back to binary, with UTF-8 support, input validation and error positions shown.

Developer Tools HE

HEX to RGB Converter

Convert colours between HEX, RGB and HSL with sliders, a live swatch and copy-ready CSS snippets, plus a random colour button.

Developer Tools PX

PX to REM Converter

Convert pixels to rem and rem back to pixels against any base font size, with a quick-reference table and a copyable CSS snippet.

Developer Tools CS

CSV to JSON Converter

Convert CSV data to a pretty JSON array with automatic delimiter detection, header-row handling and downloads — paste text or upload a file.

Developer Tools PA

Password Strength Checker

Check how strong a password is with an entropy estimate in bits, a crack-time guide and a checklist of what to fix — checked 100% locally.

Developer Tools LO

Lorem Ipsum Generator

Generate classic Lorem ipsum placeholder text by paragraphs, sentences or words, as plain text or HTML paragraphs, ready to copy or download.

Developer Tools